Si/Ga埃尼碳硅酸盐的合成与表征(英文)
Synthesis and characterization of Si/Ga Eni Carbon Silicates作者机构:Eni s.p.a. Development Operations & Technology Downstream R&D
出 版 物:《催化学报》 (Chinese Journal of Catalysis)
年 卷 期:2015年第36卷第6期
页 面:813-819页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
主 题:硅酸盐 扫描电子显微镜 Si 合成 表征 GA 碳 X射线衍射
摘 要:Phenylene-gallosilicates were prepared with the same crystalline structure as their aluminum analogues. The new Ga-Eni Carbon Silicates(Ga-ECS) phases were investigated by X-ray diffraction, scanning electron microscopy, nuclear magnetic resonance and thermogravimetric analysis, which demonstrated that gallium isomorphously replaced aluminum in the framework of the organic-inorganic hybrids similar to the case of classical zeolites. Hybrid ECS materials were obtained with different types of bridged silsesquioxane precursors that maintained the aluminum-silicate nature of the inorganic moiety. This work confirms a new level of crystal chemistry versatility for this class of materials, and demonstrates the possibility to tailor also the inorganic part of the framework by changing the nature of the trivalent heteroatom.